package com.wzp;

import java.util.ArrayList;
import java.util.concurrent.CountDownLatch;
import java.util.concurrent.CyclicBarrier;
import java.util.concurrent.locks.ReentrantLock;

public class Test {

    public static void main(String[] args) {
        ReentrantLock reentrantLock = new ReentrantLock();
        CyclicBarrier cyclicBarrier = new CyclicBarrier(10);
        CountDownLatch countDownLatch = new CountDownLatch(10);
        ArrayList<Object> arrayList = new ArrayList<>();

    }
}
